[DJ's left nut]

Fuel Gauge question.

So I'm pinned past the F as soon as I power the car on. I've disconnected and replaced the gauge, same thing with the new gauge.

I put the multimeter on the sending wire and ground - it looks like I'm getting an open circuit from the sending unit. I traced the wire back to the fuel tank and have found where it enters the tank and then comes back up the left frame rail to a wiring harness.

My thought is that if I cut the wire to the sending unit way back where it enters the fuel tank, that should tell me if it's shorted, right? because if its pinched or something between where I cut it and the harness, the gauge would stay at F even after I cut the wire.

If it drops, that tells me I have a faulty sending unit...I think.

If it's the former, I could just splice into that line at the cut, run the new wire up the frame and take it straight through the firewall into the gauge while bypassing the wiring harness altogether, right? Then just crimp the end of the old wire and leave it for dead (if it's the latter, it's someone else's problem - I ain't dealing with dropping that fuel tank).

Or am I just going to end up setting my car on fire somehow? This is where I get to my "just knowledgeable enough to be extremely dangerous" stage.

Because the alternative is just to keep putting gas in the thing every time I hit 100 miles on the tripmeter. Which has worked thus far.